package com.wiz.weixin.util;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;

import net.sf.json.JSONObject;

import org.apache.commons.httpclient.HttpStatus;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.wiz.weixin.common.GlobalConstant;
import com.wiz.weixin.manager.MyX509TrustManager;

public class JSSDKUtil {
	private transient final static Logger log = LoggerFactory.getLogger(JSSDKUtil.class);
	/**
	 * 发起https 请求并获取结果
	 *
	 * @param requestUrl 请求地址
	 * @param requestMethod 请求方式（GET、POST）
	 * @param outputStr 提交的数据
	 * @return String(通过JSONObject.get(key)的方式获取json 对象的属性值)
	 */
	public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) {
		String jsonObject = null;
		StringBuffer buffer = new StringBuffer();
		try {
			// 创建SSLContext 对象，并使用我们指定的信任管理器初始化
			TrustManager[] tm = { new MyX509TrustManager() };
			SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
			sslContext.init(null, tm, new java.security.SecureRandom());
			// 从上述SSLContext 对象中得到SSLSocketFactory 对象
			SSLSocketFactory ssf = sslContext.getSocketFactory();

			URL url = new URL(requestUrl);
			HttpsURLConnection httpUrlConn = (HttpsURLConnection)url.openConnection();
			httpUrlConn.setSSLSocketFactory(ssf);

			httpUrlConn.setDoOutput(true);
			httpUrlConn.setDoInput(true);
			httpUrlConn.setUseCaches(false);
			// 设置请求方式（GET/POST）
			httpUrlConn.setRequestMethod(requestMethod);

			if ("GET".equalsIgnoreCase(requestMethod)){
				httpUrlConn.connect();
			}

			// 当有数据需要提交时
			if (null != outputStr) {
				OutputStream outputStream = httpUrlConn.getOutputStream();
				// 注意编码格式，防止中文乱码
				outputStream.write(outputStr.getBytes("UTF-8"));
				outputStream.close();
			}

			// 将返回的输入流转换成字符串
			InputStream inputStream = httpUrlConn.getInputStream();
			InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
			BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

			String str = null;
			while ((str = bufferedReader.readLine()) != null) {
				buffer.append(str);
			}
			bufferedReader.close();
			inputStreamReader.close();
			// 释放资源
			inputStream.close();
			inputStream = null;
			httpUrlConn.disconnect();
			jsonObject = buffer.toString();
		} catch (Exception e) {
			log.error(e.getMessage());
			return "";
		}
		return jsonObject;
	}
	
	/**
	 * 获取微信JSSDK的ticket 
	 * @author Benson
	 * @throws JSONException 
	 */
	public static boolean getJsApiTicket(String access_token) throws JSONException {
		String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi";
		String requestUrl = url.replace("ACCESS_TOKEN", access_token);
		// 发起GET请求获取凭证
		String response = httpsRequest(requestUrl, "GET", null);
		org.json.JSONObject jsonObject = new org.json.JSONObject(response);
		if (null != jsonObject) {
			try {
				GlobalConstant.tencent_wx_ticket = jsonObject.getString("ticket");
				log.info("JsApiTicket=============>>"+GlobalConstant.tencent_wx_ticket);
				return true; 
			} catch (JSONException e) {
				// 获取token失败
				log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
			}
		}
		return false;
	}
	 /**
	  * 获得客户的openid
	  * @param code
	  * @param appid
	  * @param secret
	  * @return
	  * @throws JSONException
	  */
	@Deprecated
    public static String getOpenid(String code,String appid,String secret) throws JSONException {
    	String get_access_token_url="https://api.weixin.qq.com/sns/oauth2/access_token?" +
    	        "appid=APPID" +
    	        "&secret=SECRET&" +
    	        "code=CODE&grant_type=authorization_code";
        get_access_token_url=get_access_token_url.replace("APPID", appid);
        get_access_token_url=get_access_token_url.replace("SECRET", secret);
        get_access_token_url=get_access_token_url.replace("CODE", code);
        
        String json=JSSDKUtil.getUrl(get_access_token_url);
        
        
        JSONObject jsonObject=JSONObject.fromObject(json);
        log.info("getOpenid=============>>json:"+json);
//        String access_token=jsonObject.getString("access_token");
        String openid=jsonObject.getString("openid");
        
        
        return openid;
    }

    /**
     * 获取接口访问凭证
     * 
     * @param appid 凭证
     * @param appsecret 密钥
     * @return
     * @throws JSONException 
     */
	@Deprecated
    public static  String getAccess_token(String appid, String appsecret) throws JSONException {
            //凭证获取(GET)
            String token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
        String requestUrl = token_url.replace("APPID", appid).replace("APPSECRET", appsecret);
        // 发起GET请求获取凭证
        String response = httpsRequest(requestUrl, "GET", null);
        org.json.JSONObject jsonObject = new org.json.JSONObject(response);
                String access_token = null;
        if (null != jsonObject) {
            try {
                access_token = jsonObject.getString("access_token");
            } catch (JSONException e) {
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return access_token;
    }
	@Deprecated
	public static String getUrl(String url){
        String result = null;
        try {
            // 根据地址获取请求
            HttpGet request = new HttpGet(url);
            // 获取当前客户端对象
            HttpClient httpClient = new DefaultHttpClient();
            // 通过请求对象获取响应对象
            HttpResponse response = httpClient.execute(request);
            
            // 判断网络连接状态码是否正常(0--200都数正常)
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                result= EntityUtils.toString(response.getEntity());
            } 
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return result;
    }
}
